The Singapore-New York flights will be the longest in the world with a distance of about 10,300 miles and a travel time of nearly 19 hours.

The flights will operate daily between Singapore Changi International Airport and Newark Liberty International using new Airbus A350-900ULR airliners.

The Airbus A350-900ULRs will have just 161 seats on board — 67 business and 94 premium economy.

Singapore Airlines confirmed on Wednesday that it's going to relaunch its nonstop service between New York and Singapore in October.

With a distance of about 10,300 miles and a travel time of up to 18 hours 45 minutes, it will also be the longest nonstop flight in the world. The current long-distance leader is Qatar Airways' 9,000-mile flight from Doha, Qatar, to Auckland, New Zealand. Singapore will deploy its new fleet of next-generation, carbon-composite Airbus A350-900ULR airliners for the flight. ULR stands for "ultralong range."

The new nonstop service is expected to commence on October 11 and will operate daily between Singapore's Changi International Airport and Newark Liberty International in New Jersey.

Singapore Airlines business class. Singapore Airlines

Flights between New York and Singapore are currently operated using the double-decker Airbus A380 with a stopover in Frankfurt, Germany.

"Singapore Airlines has always taken pride in pushing the boundaries to provide the best possible travel convenience for our customers," Singapore Airlines' CEO, Goh Choon Phong, said in a statement. "We are pleased to be leading the way with these new non-stop flights using the latest-technology, ultra-long-range Airbus A350-900ULR."

Singapore's A350-900ULRs will be equipped with 67 business class and 94 premium economy seats. There are no first-class suites or economy class seats on board. With just 161 seats, the ULRs will carry 92 fewer passengers than the rest of Singapore's A350-900 fleet.

Premium economy. Singapore Airlines

The airline previously operated the route using all-business-class Airbus A340-500 airliners before suspending the service in 2013. The airline simply couldn't sustain the route financially using the fuel-guzzling, four-engine A340 with just 100 seats.

Singapore believes the new generation of ultra-fuel-efficient twin-engine wide-bodies like the A350-900ULR will make the route profitable.

The new Newark-Singapore route will mark the official entry into service for the A350-900ULR. Singapore is the plane's launch customer with seven on order. The airline is expected to take delivery of its first ULR in September with all seven to be delivered by the end of the year.

The airline is also planning to use the ULR on its soon-to-be-announced nonstop Singapore-Los Angeles route.